I want to wire in a sensor at 210 that sets audible and flashing light alarm. also want low coolant, low oil and low oil pressure tied in to that as well. At 210 you better be watching the gauge as much as the road and at 220 pull over.
Yes, as mentioned above hitting that temp shortened the life on your rings. It isn't noticeable immediately, It's like shooting a bullet out of a pistol you just picked up on the battle field. How many shots you have left is a good question to which only time will tell.